公开(公告)号：US06761338B2

公开(公告)日：2004-07-13

申请号：US10271894

申请日：2002-10-16

申请人： Ryuji Yamasaki

发明人： Ryuji Yamasaki

IPC分类号： B68G500

CPC分类号： A61G5/1067 ,  A61G5/1054 ,  A61G5/12 ,  A61G5/121 ,  Y10S297/04

摘要： A chuck structure joins a headrest to a wheelchair. A chuck includes a joining hole at an upper end serving to install a supporting arm at two sides of the headrest. The lower end of the chuck includes two sidewalls, on the sidewalls being through holes, with the two sidewall forming a recessed space. Inside the recessed space is an arched end face. The recessed space of the chuck is aligned with and fixed to a bend of the armrest of the wheelchair. A positioning member between the through holes on the sidewalls presses against the bottom of the armrest bend. Two ends of the arched end face press against the upper end of the armrest bend, forming firm positioning effect by three points. The headrest installed on the chuck can be assembled or disassembled by tightening or loosening the positioning member.

摘要翻译： 卡盘结构将头枕连接到轮椅上。 卡盘包括在上端的连接孔，用于在头枕的两侧安装支撑臂。 卡盘的下端包括两个侧壁，侧壁是通孔，两个侧壁形成凹陷空间。 在凹进的空间内是拱形的端面。 卡盘的凹陷空间与轮椅的扶手的一个弯头对准并固定在其上。 侧壁上的通孔之间的定位构件压靠在扶手弯头的底部。 拱形端面的两端压靠扶手弯头的上端，三点形成牢固的定位效果。 安装在卡盘上的头枕可以通过拧紧或松开定位构件来组装或拆卸。